Airborne oxygen preparing-nitrogen preparing coupling system with expansion machine and method thereof

A coupling system and oxygen generation system technology, applied in the field of aviation systems, can solve the problems of ineffective reduction of engine compressor bleed air, complex system, low working reliability, etc., and achieve the effect of light weight, small size and reliable operation

Pending Publication Date: 2018-03-27
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0006] In order to overcome the shortcomings of the existing aircraft onboard oxygen and nitrogen production systems that cannot effectively reduce the amount of bleed air from the ...

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  • Airborne oxygen preparing-nitrogen preparing coupling system with expansion machine and method thereof

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with embodiment. The following descriptions are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0023] Such as figure 1As shown, the airborne oxygen generation-nitrogen generation coupling system and method with an expander of the present invention. The engine bleed air is connected to one end of the temperature sensor 1 through a pipeline; the second end of the temperature sensor 1 is connected to the first electric control valve 2, the Venturi regulator 3, the first flow sensor 4, and the first heat exchanger through the pipeline in sequence. 5 hot-side channel inlets of the device; the hot-side channel outlets of the first heat exchanger 5 are connected to the expander 6 inlet and th...

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Abstract

The invention discloses an airborne oxygen preparing-nitrogen preparing coupling system with an expansion machine and a method thereof, and belongs to the aviation system technical field. A specific principle comprises that entraining air from an engine gas compressor is divided into two ways after pressure stabilization and cooling; one way of entraining air is used for doing work to the expansion machine for driving two compressors; the other way of entraining air is boosted by the first compressor, and then passes through a hollow fiber membrane nitrogen preparing system to prepare nitrogen-rich gas for an inserting aircraft fuel tank; discharged exhaust gas (oxygen-rich gas) in the nitrogen preparing system is boosted by the second compressor and then passes through a molecular sieve oxygen preparing system to obtain oxygen, and oxygen flows into a cabin or a cockpit and is outputted as oxygen for the flight crew to breathe. The system has no electrically driven equipment, is feasible to prepare, high in separation membrane efficiency, reliable in operation, small in size and light in weight, and conforms to the airborne equipment requirements.

Description

technical field [0001] The invention belongs to the technical field of aviation systems, and relates to an airborne oxygen-generating-nitrogen-generating coupling system, in particular to an airborne oxygen-generating-nitrogen generating coupled system and method with an expander. Background technique [0002] As we all know, in order to ensure long-term battery life, advanced fighter jets have abandoned the traditional method of gas oxygen and liquid oxygen as the only source of oxygen supply, and have turned to airborne oxygen generation technology. It uses inexhaustible air as an oxygen supply source, and through the separation of air by onboard equipment, it meets the needs of the crew for breathing oxygen. Therefore, it has completely changed the situation that the aircraft's endurance time is limited by the onboard oxygen source, and has brought revolutionary changes to the aviation oxygen supply system. Not only that, the airborne oxygen generation technology also gr...

Claims

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Application Information

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IPC IPC(8): C01B21/04C01B13/02
CPCC01B13/0262C01B13/0274C01B21/0455C01B21/0472C01B2210/002C01B2210/0015
Inventor 彭孝天冯诗愚李超越邵磊刘卫华
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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